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Japan’s space agency, JAXA, successfully launched the eighth H3 rocket on June 12, 2026, in the Flight 6 (F6) mission from the Yoshinobu Launch Complex at the Tanegashima Space Center. The mission was significant for two reasons. First, it marked the return of the H3 program following the previous mission’s failure, which was caused by a structural collapse of the payload adapter that damaged the second stage hydrogen tank. Second, it was the debut flight of the new H3-30 configuration, a version that operates without SRB-3 solid rocket boosters and instead uses three LE-9 liquid-fueled engines on its first stage. As a test flight, the rocket carried six small satellites and an experimental payload. These included the University of Tokyo’s Earth observation satellite PETREL, the French cubesat BRO-22, the STARS-X satellite designed to deploy a one-kilometer tether in orbit, the HORN-L and HORN-R satellites intended to test drag sail technology, and VERTECS, a satellite for astronomical observations. The mission successfully inserted its payloads into a near-polar orbit of approximately 551 by 576 kilometers with a 97.7-degree inclination. Following the retirement of the Delta IV Heavy, the H3-30 has become the only operational launch vehicle that relies exclusively on liquid hydrogen and liquid oxygen engines across all stages without solid rocket boosters. The new variant is lighter and less powerful than other H3 configurations but is designed to place up to three metric tons into sun-synchronous orbit. JAXA plans further upgrades to the H3 family, including a larger second stage known as Block 3. The successful mission restores confidence in Japan’s primary launch vehicle, which is expected to support future scientific missions, cargo spacecraft launches, weather satellites, and navigation systems.

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Aviation News – The Japan Aerospace Exploration Agency (JAXA) is set to command its HTV-X1 uncrewed cargo spacecraft to depart from the International Space Station this Friday, marking the successful conclusion of a vital resupply mission. After launching on an H3 rocket from the Tanegashima Space Center in October 2025, the HTV-X1 successfully delivered approximately 12,000 pounds of critical supplies, scientific experiments, and essential hardware to the orbital laboratory.

Japan's H3 rocket launched on December 22nd, tasked with delivering a critical navigation satellite, but a payload fairing anomaly led to the premature loss of the five-ton cargo. This incident is a major setback for Japan's space program and its QZSS navigation system, sparking questions about the H3's reliability. Learn what happened in this orbital oopsie! What are your thoughts on this space challenge? Date January 29, 2026 Tools used for generation Text Gemini Narator Azure TTS Clips Pexel Rendering Remotion

L’agence spatiale japonaise (Jaxa) a annoncé que sa fusée H3 avait échoué lundi 22 décembre à placer en orbite un satellite de géolocalisation, après l’arrêt prématuré de l’un de ses moteurs.

L’agence spatiale japonaise (Jaxa) a annoncé que sa fusée H3 avait échoué lundi 22 décembre à placer en orbite un satellite de géolocalisation, après l’arrêt prématuré de l’un de ses moteurs.

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